Question

In an LCR circuit, inductive reactance is 30 `Omega` and capacitive reactance 30 `Omega`. The resistance was found to be 40 `Omega`. The probable impedance of the combination is ____________.

विकल्प

• 40 `Omega`

• 60 `Omega`

• 100 `Omega`

• 20 `Omega`

Answer 1

In an LCR circuit, inductive reactance is 30 `Omega` and capacitive reactance 30 `Omega`. The resistance was found to be 40 `Omega`. The probable impedance of the combination is 40 `Omega`.

Explanation:

`"X"_"L" = 30  Omega       "X"_"C" = 30  Omega`

`"R" = 40  Omega          "Z" = sqrt (40^2 + 0) = 40  Omega`